Typewriting machine



J. A. B. SMITH TYPEWRITING MACHINE Aug. 16. 1927. 1,639,235

Filed July 29. 1924 y' I /nPe/yfor Patented Aug 16,1927.

UNITED STATES -P'ATENT OFFICE.

WRITER COMPAN X QI' NEW YORK, N. Y., A CORPORATION OI' DELA'WABE.

TYPEWBI'IING CHINE.

Application filed July 28, 1924. Serial No. 728,828.

This invention relates to tally-sheet mechanism, and more particularly to means whereby a tally-sheet may be made an inkcopy instead of a carbon copy. This invention is an improvement on devices shown in the patent to F. A. Hart, No. 1,281,160,

dated October8, 1918.

In accordance with said patent, in making a duplicate on the tally-sheet of the work done on the original work-sheet, a carbonsheet is inserted between the tally-sheet and the work-sheet. This carbon-duplicate, however, is unsuitable for many kinds of work, a duplicate made with permanent ink bein required.

It is the primary object of the present invention to provide a duplicate typed with permanent ink, the same as the typing on the original work sheet. This is accomplished by providing a separate inked ribbon positioned next to the tally-sheet. To protect the tally-sheet from being soiled by this auxiliary ribbon, the ribbon is carried on a supply-spool separate from the tally-sheetsupply spool, and is received on a spool separate from the tally-sheet-receiving spool.

The objection to the use of such an auxiliary ribbon behind the work-sheet, because it would mark and print on the reverse side of said sheet, is overcome by inserting a continuous shield o'r protector, which is in the form of a long web of paper, between the tally-sheet auxiliary ribbon and the original work-sheet. This shield is supplied from and received on separate spools. The auxiliary-ribbon-supply spool and .its receiving spool may be used interchangeably, that is, when the supply of ribbon on the supplyspool becomes exhausted, the supply-spool can be removed, and the receiving spool with its supply of ribbon substituted, the empty supply-spool being positioned to receive the ribbon. The supply and receiving spools for the paper shield are also used 46 interchangeably. All of the aforesaid receiving spools are mounted to be driven simultaneously, by the platen line-spacing mechanism, to feed their webs around the laten uniform line-spacing distances and independently of the platen.

Other features and advantages will hereinafter appear.

In the accompany drawings, f Figure 1 is a front view of a typewriter 56 platen and frames with the present invention applied thereto, parts being broken away.

Figure 2 is a sectional view, taken on the plane indicated by the line AA of Figure 1 and looking in the direction of the arrows.

Figure 3 is a sectional view, taken on I the plane indicated by the line B-B of Figure 1 and looking in the direction of the arrows.

Figure 4 is a detail sectional view, showing how the ribbon-receiving spool is mounted.

Figure 5 is a sectional view, taken on the plane indicated by the line C0 of Figure 4 and looking in the'direction of the arrows.

Figure 6 is a sectional detail View, showing how the ribbonsupply spool is mounted.

The platen 1 is carried by a shaft 2, which is rotatable in the platen-frames 3 and 4. This platen 1 is rotated by a hand-wheel 5' or by a lever 6 acting on a pawl 7 andratchet-wheel 8, which is fixedly secured to the shaft 2. Securely mounted on the platen-frames 3 and 4 are brackets 9 and 10. These brackets 9 and 10 support a rod 11, on which are mounted intermediate its ends frames 12 and 13. Journaled in said frames 12 and 13, adajacent their top and rear ends and mounted parallel to' the platen 1, is a tally-sheet spool 14 for supplying the tally-sheet 15. Immediately forward of said supply-spool 14, in said frames 12 and 13, is journaled, parallel to the platen 1, the tally-sheetsreceiving spool 16, fastened to which, on the outside of the lefthand frame 12, is a gear 17. The mounting of said supply-spool 14 and receiving spool 16 is the same as the mounting for the auxiliary-ribbon-supply-and-receiving spools, presently to be described.

Instead of using a carbon-sheet to make an impression on the tally-sheet, as is the case in said Patent No. 1,281,160, in the present invention an inked ribbon is used. This is done by mounting rotatably between the frames 12 and 13, and parallel with the laten 1, a spool 18 for supplying an auxiliary ribbon or inking web 19. This spool 18, as shown in Figure 6, is rotatably mounted in the frames12 and 13 by means of screws 20 and. 21, respectively. Knurled knobs 22 and are fastened tosaid screws 20 and 21, respectively. The free end of the in its place, the empty supply-spool 18 being mounted to receive the ribbon. Carried on the left-hand screw 26, and outside of the frame 12, is a gear 28, the hub 29 of which passes through the frame 12-and into the spool 24. This hub 29 is squared, as indicated at 30, to prevent relative rotation between the gear 28 and the spool 24. The gear 28 is in mesh with the gear 17. The presence of this inked auxiliary ribbon 19 next to the tally-sheet 15 results in said tally-sheet 15 being typed with the .ink on ribbon 19. With such an inked ribbon 19 between the tally-sheet 15 and the original Work-sheet 31, ordinarily, the reverse side of the work-sheet 31 would receive ofl'set typed impressions. -To take care of this, in the present invention, a protecting shield 32 in the form of a web of paper is inserted between the auxiliary ribbon .19 and the work-sheet 31. This protecting web 32 is supplied from a spool 33 mounted in the frames 12 and 13, parallel to the platen 1, and is received by a spool 34 mounted in said frames 12 and 13 parallel to the platen. The mounting of these spools 33 and 34 is the same as the mounting for the spools 18 and 24 for the ribbon 19. The receiving spool 34 has a gear 35 removably -mounted in its left-hand end, which gear 35 meshes with the gear 28. It will be noted that the gears 17, 28 and 35 are in mesh.

Supported rotatably by the brackets 8 and 9 and passing through the frames 12 p and 13 is a drive shaft 36. This shaft 36 has keyed thereon at a point outside the frame 12 a gear 37. This gear 37 meshes with the gear 35 of the shield-receiving spool 34. At the left-hand end of this shaft 36 is fixedly mounted a ratchet-wheel 38. This ratchet-wheel 38 is driven by a pawl 39 which is actuated by a link 40 connected to the lever 6 by a slide 41. The pawl 39 is held in engagement with the ratchetwheel 38 by means of a spring 42, and the ratchet 38 is held by a spring-detent 43.

In operation, when the lever 6 is pulled to advance the platen 1, the shaft 36, through the pawl-and-ratchet mechanism described,

1s driven simultaneously. Thisshaft 36 drives the gear 37, which, in turn, drives the gears 35, 28 and 17, thus winding each one of the spools on which these latter gears are mounted. As willbe noted, when the type 44 strikes the main machine ribbon 45, the character on the type 44 is impressed on the work-sheet 31 with permanent ink, and, by reason of the presence of the second ink-ribbon 19 next to the tally-sheet 15, said tally-sheet has also impressed thereon the same character with permanent ink. The protecting web 32, positioned between the work-sheet 31 and the auxiliary ribbon 19, prevents typing on the reverse side of said work-sheet.

At Figure 1 it will be noted that the work-sheet 31 is considerably wider than the tally-web, which provides work-sheet areas at each side edge of the tally-web, and the usual Underwood feed-rolls of the platen are spaced to straddle the tally-web position and only bear upon these two side edges of the work-sheet. This arrangement provides that the outer work-sheet may have variable standard line-spacing movements predetermined by the setting of the linespacing mechanism, and that the tally-web and its ribbon and protective web may be fed differentially to the line-spacing movement of the platen and the work-sheet, for uniform condensed spacing of the tally-web.

It will be further noted that the feeding of the auxiliary ribbon, tally and protective Webs around the platen in unison as a unit prevents the inked fabric from smudging or otherwise soiling the face of the tallyweb, as is usually the case when the tallyweb is drawn under a stationary inking element or across a transversely fed inked ribbon, as heretofore; and that by cutting the tally-web, ribbon-Web and protective paper-web in uniform lengths, the reversal of the ,ribbon and paper web-spools may take place at the same time that a new tally- Web is supplied to the platen.

Variations may be resorted to within the scope of the invention, and portions of the improvements may beused without'others.

Having thus described my invention, I claim:

1. In a typewri-ting machine, the combination. of a platen arranged to feed a Worksheet, tally-recording mechanism including individual means for drawing a. tally-web, an inking web and a protective webaround the platen, and line-spacing mechanism operative to line-space the platen and operatively connected to the tally mechanism to simultaneously effect a joint line-spacing movement of all the webs.

2. In a typewriting machine, the combination of a platen arranged to carry a worksheet, tally-recording mechanism including a spool for the tELHY-WGbffi s 001 for the inking web and a spool for t e rotective web, line-spacing mechanism to ine-space the platen and the work-sheet, and geardriven means actuated by the line-spacing mechanism and connected in train to drive for delivering a protective web between said auxiliary ribbon and work-sheet, a separate receiving spool for said protective web, and means for rotating said receiving spools as a unit and independently of said platen.

LIn a typewriting machine, the combi- 'nation of a platen arranged to feed a worksheet, tally-recording mechanism including a spool for a tally-web, a spool for an inking web and a spool for a protective web, line-spacing mechanism to line-space the platen and the work-sheet a predetermined extent, and gear-driven means actuated by the line-spacing mechanism and operatively connected in train with the spools of the three Webs to simultaneously efl'ect a unitary line-spacing movement of the webs of lesser extent.

'5. In a typew'riting machine, the combination with a rotatable platen for holding a work-sheet, of a tally-sheet-supply spool from which a strip is delivered around the platen, a main ribbon for printing on said work-sheet with permanent ink, a tallysheet-receiving 'spool, a gear mounted on said receiving spool, asupply-spool for delivering an auxiliary ribbon around said platen for printing on said strip with permanent ink, a separate receiving spool for said auxiliary ribbon, a gear mounted on saidreceiving spool, a Suppl -spool for delivering a shield between sai auxiliary ribbon and work-sheet, a separate receiving said shield-receiving spool, all of the aforesaid gears being in mesh a drive shaft mounted parallel with said platen, linespacemechanism for rotating said platen, a train of gears between said line-space mechanism and said drive shaft, and a gear on said drive shaft meshing with the gears on the receiving spools to drive the latter. 6. In a typewriting machine, the combina tion of a platen including a line-spacing mechanism to line-space the platen and a work-sheet, a spool operable to feed a tallvweb around the platen to underlie the worksheet, a spool operable to feed an inking web around-the platen to overlie the tallyweb, a spool operable to feed a protective web around the platen to overlie the inking web to prevent offsetting of the inking web to the adjacent face of the work-sheet, and means operativelyconnecting the line-spacing mechanism to the three spools whereby the feeding movement of the spools will vary from the feeding movement of the platen.

7. In a typewriting machine, the combination of a platen including a line-space mechanism to line-space a work-sheet with the platen, tally-mechanism including individual feeding means for a tally-web, an inking web and a protective web arranged in superposed relation around the platen, and means actuated by the line-space mechanism in line-spacing the platen and operatively connected to drive said individual feeding means to line-space the three webs as a unit independently of the platen.

8. In a typewriting machine, the combination of a platen including a line-spacing mechanism to line-space the platen and a work-sheet, tally-mechanisms including a tally-web spool, an inking web spool and a protective web spool to be individually rotated to draw their webs'around the platen and under the work-sheet in superposed relation, and means co-operative with the linespacing mechanism and connected to rotate t e spools to line-space all the webs in unison through a condensed line-space distance. spool for said shield, a gear mounted on JESSE A. B. SMITH. 

